Remove generated directories with 100s of files.

client/dom/generated/src/interface/WorkerContext.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING: Do not edit - generated code.
-
-interface WorkerGlobalScope {
-
-  final WorkerLocation location;
-
-  final WorkerNavigator navigator;
-
-  EventListener onerror;
-
-  final WorkerContext self;
-
-  final IDBFactory webkitIndexedDB;
-
-  final NotificationCenter webkitNotifications;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture]);
-
-  void clearInterval(int handle);
-
-  void clearTimeout(int handle);
-
-  void close();
-
-  bool dispatchEvent(Event evt);
-
-  void importScripts();
-
-  Database openDatabase(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);
-
-  DatabaseSync openDatabaseSync(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture]);
-
-  int setInterval(TimeoutHandler handler, int timeout);
-
-  int setTimeout(TimeoutHandler handler, int timeout);
-
-  void webkitRequestFileSystem(int type, int size, [FileSystemCallback successCallback, ErrorCallback errorCallback]);
-
-  DOMFileSystemSync webkitRequestFileSystemSync(int type, int size);
-
-  EntrySync webkitResolveLocalFileSystemSyncURL(String url);
-
-  void webkitResolveLocalFileSystemURL(String url, [EntryCallback successCallback, ErrorCallback errorCallback]);
-}
-
-interface WorkerContext extends WorkerGlobalScope {
-
-  static final int PERSISTENT = 1;
-
-  static final int TEMPORARY = 0;
-}